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基本情報
登録情報 | ![]() | |||||||||
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タイトル | NDH-PSI-LHCI supercomplex from S. oleracea: composite map | |||||||||
![]() | Composite map | |||||||||
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![]() | NDH / PSI / Supercomplex / photosynthesis / electron transport chain / lipids / proton translocation / plastoquinone / ELECTRON TRANSPORT | |||||||||
機能・相同性 | ![]() glucose-6-phosphate 1-epimerase activity / NAD(P)H dehydrogenase complex (plastoquinone) / P450-containing electron transport chain / photosynthesis, light harvesting in photosystem I / トランスロカーゼ; ヒドロンの輸送の触媒; 酸化還元酵素反応を伴う / thylakoid / NADH dehydrogenase complex / chloroplast thylakoid lumen / photosystem II oxygen evolving complex / photosystem I reaction center ...glucose-6-phosphate 1-epimerase activity / NAD(P)H dehydrogenase complex (plastoquinone) / P450-containing electron transport chain / photosynthesis, light harvesting in photosystem I / トランスロカーゼ; ヒドロンの輸送の触媒; 酸化還元酵素反応を伴う / thylakoid / NADH dehydrogenase complex / chloroplast thylakoid lumen / photosystem II oxygen evolving complex / photosystem I reaction center / photosystem I / photosynthetic electron transport in photosystem I / photosynthetic electron transport chain / photosystem I / oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor / photosystem II / extrinsic component of membrane / cyclosporin A binding / chlorophyll binding / photosynthesis, light reaction / chloroplast thylakoid membrane / ubiquinone binding / : / electron transport coupled proton transport / NADH dehydrogenase activity / response to light stimulus / respiratory chain complex I / NADH dehydrogenase (ubiquinone) activity / quinone binding / ATP synthesis coupled electron transport / photosynthesis / aerobic respiration / peptidyl-prolyl cis-trans isomerase activity / chloroplast / peptidylprolyl isomerase / phosphoprotein binding / electron transport chain / 2 iron, 2 sulfur cluster binding / NAD binding / protein folding / 4 iron, 4 sulfur cluster binding / carbohydrate binding / molecular adaptor activity / response to oxidative stress / carbohydrate metabolic process / electron transfer activity / oxidoreductase activity / iron ion binding / calcium ion binding / magnesium ion binding / metal ion binding / membrane / plasma membrane / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.19 Å | |||||||||
![]() | Introini B / Hahn A / Kuehlbrandt W | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Cryo-EM structure of the NDH-PSI-LHCI supercomplex from Spinacia oleracea. 著者: Bianca Introini / Alexander Hahn / Werner Kühlbrandt / ![]() 要旨: The nicotinamide adenine dinucleotide phosphate (NADPH) dehydrogenase (NDH) complex is crucial for photosynthetic cyclic electron flow and respiration, transferring electrons from ferredoxin to ...The nicotinamide adenine dinucleotide phosphate (NADPH) dehydrogenase (NDH) complex is crucial for photosynthetic cyclic electron flow and respiration, transferring electrons from ferredoxin to plastoquinone while transporting H across the chloroplast membrane. This process boosts adenosine triphosphate production, regardless of NADPH levels. In flowering plants, NDH forms a supercomplex with photosystem I, enhancing its stability under high light. We report the cryo-electron microscopy structure of the NDH supercomplex in Spinacia oleracea at a resolution of 3.0-3.3 Å. The supercomplex consists of 41 protein subunits, 154 chlorophylls and 38 carotenoids. Subunit interactions are reinforced by 46 distinct lipids. The structure of NDH resembles that of mitochondrial complex I closely, including the quinol-binding site and an extensive internal aqueous passage for proton translocation. A well-resolved catalytic plastoquinone (PQ) occupies the PQ channel. The pronounced structural similarity to complex I sheds light on electron transfer and proton translocation within the NDH supercomplex. | |||||||||
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構造の表示
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マップデータ | ![]() | 444.7 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 63.2 KB 63.2 KB | 表示 表示 | ![]() |
画像 | ![]() | 117 KB | ||
Filedesc metadata | ![]() | 14.5 KB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 9grxMC C: 同じ文献を引用 ( M: このマップから作成された原子モデル |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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リンク
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||
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注釈 | Composite map | ||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 0.837 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
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試料の構成要素
+全体 : NDH-PSI-LHCI supercomplex from Spinacia oleracea
+超分子 #1: NDH-PSI-LHCI supercomplex from Spinacia oleracea
+分子 #1: Photosynthetic NDH subunit of lumenal location 1, chloroplastic
+分子 #2: Photosynthetic NDH subunit of subcomplex B 1, chloroplastic
+分子 #3: Photosynthetic NDH subunit of subcomplex B 2, chloroplastic
+分子 #4: Photosynthetic NDH subunit of subcomplex B 3, chloroplastic
+分子 #5: Photosynthetic NDH subunit of subcomplex B 4, chloroplastic
+分子 #6: Photosynthetic NDH subunit of subcomplex B 5, chloroplastic
+分子 #7: Photosynthetic NDH subunit of lumenal location 2, chloroplastic
+分子 #8: Photosynthetic NDH subunit of lumenal location 3, chloroplastic
+分子 #9: peptidylprolyl isomerase
+分子 #10: Peptidyl-prolyl cis-trans isomerase
+分子 #11: NAD(P)H-quinone oxidoreductase subunit 1, chloroplastic
+分子 #12: NAD(P)H-quinone oxidoreductase subunit 2 A, chloroplastic
+分子 #13: NAD(P)H-quinone oxidoreductase subunit 3, chloroplastic
+分子 #14: NAD(P)H-quinone oxidoreductase chain 4, chloroplastic
+分子 #15: NAD(P)H-quinone oxidoreductase subunit 4L, chloroplastic
+分子 #16: NAD(P)H-quinone oxidoreductase subunit 5, chloroplastic
+分子 #17: NAD(P)H-quinone oxidoreductase subunit 6, chloroplastic
+分子 #18: NAD(P)H-quinone oxidoreductase subunit H, chloroplastic
+分子 #19: NAD(P)H-quinone oxidoreductase subunit I, chloroplastic
+分子 #20: NAD(P)H-quinone oxidoreductase subunit J, chloroplastic
+分子 #21: NAD(P)H-quinone oxidoreductase subunit K, chloroplastic
+分子 #22: NAD(P)H-quinone oxidoreductase subunit L, chloroplastic
+分子 #23: NAD(P)H-quinone oxidoreductase subunit M, chloroplastic
+分子 #24: NAD(P)H-quinone oxidoreductase subunit N, chloroplastic
+分子 #25: NAD(P)H-quinone oxidoreductase subunit O, chloroplastic
+分子 #26: NAD(P)H-quinone oxidoreductase subunit U, chloroplastic
+分子 #27: Photosystem I P700 chlorophyll a apoprotein A1
+分子 #28: Photosystem I P700 chlorophyll a apoprotein A2
+分子 #29: Photosystem I iron-sulfur center
+分子 #30: Photosystem I reaction center subunit II, chloroplastic
+分子 #31: Photosystem I reaction center subunit IV, chloroplastic
+分子 #32: Photosystem I reaction center subunit III, chloroplastic
+分子 #33: Photosystem I reaction center subunit V, chloroplastic
+分子 #34: Photosystem I reaction center subunit VI, chloroplastic
+分子 #35: Photosystem I reaction center subunit VIII
+分子 #36: Photosystem I reaction center subunit IX
+分子 #37: PSI-K
+分子 #38: Photosystem I reaction center subunit XI, chloroplastic
+分子 #39: Chlorophyll a-b binding protein, chloroplastic
+分子 #40: Chlorophyll a-b binding protein, chloroplastic
+分子 #41: Chlorophyll a-b binding protein, chloroplastic
+分子 #42: Chlorophyll a-b binding protein, chloroplastic
+分子 #43: BETA-CAROTENE
+分子 #44: (1S)-2-{[{[(2R)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-...
+分子 #45: 4-trans-(4-trans-Propylcyclohexyl)-cyclohexyl alpha-maltoside
+分子 #46: 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE
+分子 #47: 5-[(2E,6E,10E,14E,18E,22E)-3,7,11,15,19,23,27-HEPTAMETHYLOCTACOSA...
+分子 #48: 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL
+分子 #49: IRON/SULFUR CLUSTER
+分子 #50: CHLOROPHYLL A
+分子 #51: DIGALACTOSYL DIACYL GLYCEROL (DGDG)
+分子 #52: CHLOROPHYLL A ISOMER
+分子 #53: PHYLLOQUINONE
+分子 #54: CHLOROPHYLL B
+分子 #55: (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
緩衝液 | pH: 7.8 |
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凍結 | 凍結剤: ETHANE |
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電子顕微鏡法
顕微鏡 | TFS KRIOS |
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詳細 | Titan Krios G3i microscope at 300 kV, equipped with a K3 (Gatan) detector operating in electron counting mode, Bioquantum energy filter (Gatan) |
撮影 | フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 平均電子線量: 40.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 1.7 µm 最小 デフォーカス(公称値): 0.7000000000000001 µm |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |